package com.springcloud.paymenthystrix.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String paymentInfo_OK(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "  paymentInfo_OK,id:" + id + "\t" + "0(n_n)0哈哈～";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandel", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")})
    public String paymentInfo_TimeOut(Integer id) {
        //int a = 10/0;
        int timeNumber = 6;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + "  paymentInfo_TimeOut,id:" + id + "\t" + "0(n_n)0哈哈～" + "  耗时:" + timeNumber + "秒";
    }

    public String paymentInfo_TimeOutHandel(@PathVariable Integer id) {
        String infoOk = "线程池：" + Thread.currentThread().getName() + "  8001系统运行超时、异常,id:" + id + "\t" + "0(n_n)0哭泣～";
        return infoOk;
    }


    //==========服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),//是否启用断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "15000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id < 0)
            throw new RuntimeException("****id 不能为负数");
        String serialNumber = IdUtil.simpleUUID();//hutool工具
        String uuid = UUID.randomUUID().toString();
        System.out.println("uuid = " + uuid);
        return Thread.currentThread().getName() + "\t" + "调用成功，流水号：" + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(Integer id) {
        return "id：" + id + "，不能为负数，请稍后再试，。。。";
    }

}
